Schedule II - Valuation and Qualifying Accounts and Reserves - Amounts Deducted From Assets in the Balance Sheets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Accounts Receivable - Allowance for Doubtful Accounts [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	$ 8	$ 6	$ 5
Amounts charged or credited to income	3	2	2
Allowance utilized	0	0	0
Adjustments arising from change in currency exchange rates and other items	(2)	0	(1)
Balance at end of period	9	8	6
Inventory Reserves [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	53	51	46
Amounts charged or credited to income	15	10	19
Allowance utilized	(11)	(11)	(13)
Adjustments arising from change in currency exchange rates and other items	(6)	3	(1)
Balance at end of period	51	53	51
Deferred Tax Assets - Valuation Allowance [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	301	285	662
Amounts charged or credited to income	(31)	29	(483)
Allowance utilized	0	0	0
Adjustments arising from change in currency exchange rates and other items	11	(13)	106
Balance at end of period	$ 281	$ 301	$ 285